parkinson



(No Model.) 2 Sheets-Sheet 1.

H. PARKINSON. THILL COUPLING No. 464,164. Patented Dec. 1,1891.

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(No Model.) 2 Sheets-Sheet 2.

H. PARKINSON.

THILL COUPLING Patented Dec. 1,1891.

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UNITED STATES PATENT} OFFICE.

HENRY PARKINSON, OF MAILORS FLAT, NEAR \VARRNAMBOOL, ASSIGNOR OF ONE-HALF TO WILLIAM HENRY BATEMAN, OF WARRNAMBOOL, VICTORIA. v

THILL-COUPLI NG.

SPECIFICATION forming part of Letters Patent No. 464,164,dated December 1, 1891. Application filed June 20, 1891. Serial No. 396,963. (No model.) Patentedin Victoria October 20, 1890, No. 8,178.

To all whom it may concern.-

Be it known that I, HENRY PARKINSON, a subject of the Queen of Great Britain, residing at Mailors Flat, near Warrn ambool, in the British Colony of Victoria, have invented an Improved Coupling for Connecting Shafts or Poles to Vehicles, (for which I, in conjunction with William Henry Bat-email, stock agent, also a subject of the Queen of Great Britain, residing at Koroit Street, Warrnambool aforesaid, have obtained Letters Patent in the British Colony of Victoria, dated 00-- tober 20, 1890, No. 8,178,) of which the following is a specification. This invention relates to those classes of couplings which are employed for connecting shafts or poles to the axles of vehicles. Its object is to provide a simple,'inexpensive, and non-rattling coupling with which shafts or poles can be quickly connected to or disengaged from vehicles, and in which the principal wearing part is easily renewable.

It consists in a shaft orpole coupling for, vehicles wherein a spring is arranged between the rear end of the shaft-iron and the front of the axle-clip, and a set-screw is passed through the latter to enable said spring to be pressed against said shaft-iron with any required pressure, thereby forcing a pin which passes through the rear end of said shaft-iron against a pair of hooks projecting forwardly from the axle-clip. This pin is so arranged as that it can be easily removed when worn and a new one substituted for it, as will be well understood from the following description, reference being had to my drawings, wherein Figure 1 is a side elevation, and Fig. 2 is a plan, of an axle-clip having a pair of hooks projecting from it and a set -screw passing through it. Fig. 3 is a side elevation; Fig. 4:, a front elevation; and Fig. 5 is a plan of the spring which, as hereinbefore mentioned, I insert between the front of the axle-clip and the rear end of the shaft-iron. Fig. 6 is a side elevation, and Fig. 7 is a plan, of said shaftiron, showing the removable pin hereinbefore mentioned passing through a boss on its end. Fig. Sis a side elevation, and Fig. 9 a plan, of my improved shaft or pole coupling for vehicles, illustrating same with the various parts in their normal or coupled positions. I

Fig. 10 is a vertical central section on line 10 10, Fig. 9.

Similar letters of reference indicate the same parts in all the figures.

A, Figs. 1 and 2 and 8 to 10, represents a whose rear end is formed with a boss-c, through which is passed a pin D, whose ends project beyond the sides of said shaft-iron, as shown, so that said pin may engage with the said hooks B B.

E represents a spring, which-is inserted between the face of the axle-clip A and a boss 0 on the rear end of the shaft-iron C after the pin D, passing through the end of this latter, has been placed in engagement with the hooks B B on the axle-clip A.

F represents a set-screw, which is passed through the axle-clip A and the axle of the vehicle from back to front and which bears against the back of the spring E, whereby I am enabled to regulate the pressure of said spring against the boss 0 to any required amount. I prefer to construct said spring E of approximately the shape shown in Figs. 3 and 4-that is, with its upper ends curved outwardly-and I prefer to insert a piece of indie-rubber 6 between its two sides in order to increase its strength. Said spring is, moreover, provided with two outwardly-proj ecting parts e e, which extend across the hooks B B, and so prevent the spring from falling out of the coupling.

The pin D is retained in position within the boss 0 by asmaller pin (1 passing transversely through it, as shown in Figs. 6 to 10, and riveted over at'its ends, so that when the pin D becomes worn it is merely necessary to cut off one of the riveted heads of the small pin (Z and knock it out of the larger pin D to enable the latter to be removed and afresh one substituted for it, as will be well understood.

The manner of employing my invention is as follows: The clip A having been secured 2, and the pin D, which, as above described,

passes through the rear end of the shaft-iron O, is placed in engagement With thehooks B. The spring E is then dropped between the boss 0 and the axle-clip A, and said spring is pressed against said boss by turning the setscrew F to the right with the aid of a spanner or key provided for the purpose. The effect 'of this is to force the pin D forward against the hooks B,thus effectually preventing any rattle taking place between them. When it is required to remove a shaft or pole from a vehicle, it is merely necessary to slack back the set-screw F and to remove the spring E, when the shaft-iron C may be lifted out of engagement with the hooks B Without anyfurther operations being necessary.

Havingnow particularly described and ascertained the nature of my said invention and in what manner the same is tobe performed, I declare that what I claim is In a shaft or pole coupling for vehicles, the combination, with an axle-clip provided with a pair'of forwardly-projecting hooks, such as B, and a bar a for clamping said clip to the axle, of a shaft-iron provided With a pin, such as D, projecting from either side thereof so as to engage with said hooks, a pin 11, passing through pin D and riveted at its ends, a spring, such as E, having its ends outwardly curved and fitted between said axle-clip and the rear endof said shaft-iron, a set-screw, such as F, passing through said axle-clip and bearing against said spring, and a rubber block inserted between the sides of said spring, the Whole being constructed and arranged substantially as and for the purpose specified, and as illustrated in my drawings.

HENRY PARKINSON.

Witnesses: I

WALTER SMYTHE BAYsToN, WIL IAM HENRY CUBLEY. 

